JP2967507B2 - Female contacts for electrical sockets - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a female contact for an electric socket which is fitted and pressed into contact with a pin-shaped male contact of a mating electric socket connector.

[0002]

2. Description of the Related Art Conventionally, this type of female contact for an electric socket is, for example, of the type shown in FIGS. 2 (a) and 2 (b). 2 (a) relates to an external perspective view of an electrical socket contact, and FIG. 2 (b).
5 relates to a cross-sectional view taken along the line AA ′ in FIG.

The female contact 1A for an electric socket
Is fitted and press-fitted to the round pin-shaped male contact 10 of the mating electrical socket connector, and has a hollow portion for inserting the round pin-shaped male contact 10 and extends in a uniaxial direction. And has two slit notches 1a which are annular in cross-section and are axially slit at a depth d1 from a radial portion including the center thereof.

When the female contact 1A for an electric socket is fitted and press-fitted to the round pin-shaped male contact 10, the tip of the round pin-shaped male contact 10 is inserted into the hollow portion to narrow the vicinity of the slit notch 1a. You. In this state, the female contact 1A for electric socket and the male contact 10 in the form of a round pin are formed.
As shown in FIG. 2 (b), the inner wall of the hollow portion and the outer periphery of the tip of the round pin-shaped male contact 10 are contacted at two points.

FIGS. 3 (a) and 3 (b) show other female contacts for an electric socket. FIG. 3 (a) relates to a perspective view of the external appearance, and FIG. A in a)
It relates to a cross-sectional view in the -A 'direction.

In the female contact 1B for an electric socket, two slit notches 1b are provided, which are axially slit by a depth d2 from a predetermined radial portion including a center of the annular shape in cross section. In addition to the above, two slit notches 1b 'which are similarly slit at a depth d2 in a uniaxial direction from a radial portion perpendicular to a predetermined radial portion are provided.

When the female contact 1B for an electric socket is fitted and pressed against the male contact 10 in the form of a round pin, the female contact 1B for an electrical socket and the male contact 10 in a round pin form as shown in FIG. As shown, the inner wall of the hollow portion and the outer periphery of the tip of the round pin-shaped male contact 10 are contacted at four points.

[0008]

In the case of the above-mentioned female contact for an electric socket having two slit notches, two points (macroscopically) when fitted and pressed against a round pin-shaped male contact of a mating connector. However, there is an advantage that a sufficiently large contact pressure can be obtained, but on the other hand, foreign matter, such as dust, may come into contact with either of the contacts before the fitting pressure contact. There is a disadvantage that poor contact is likely to cause contact failure.

On the other hand, in the case of a female contact for an electric socket having four slit notches, four points (a macroscopically linear contact) are formed when the female contact is engaged with a round pin-shaped male contact of a mating connector. (4 places), so there is an advantage that even if foreign matter such as dust adheres to any of the contacts before the fitting press-fitting, there is an advantage that poor contact is unlikely to occur, but on the other hand, a sufficiently large contact There is a disadvantage that pressure cannot be obtained.

SUMMARY OF THE INVENTION The present invention has been made to solve such problems, and a technical problem of the present invention is to provide a female contact for an electric socket which can obtain a sufficiently large contact pressure and hardly cause a contact failure. Is to do.

[0011]

According to the present invention, the connector for a mating electrical socket is fitted and pressed into contact with a pin-shaped male contact, and has an annular cross section and extends in a uniaxial direction. And a predetermined depth in the uniaxial direction from different radial portions including the center in the annular shape of the one end portion on the fitting side with the pin-shaped male contact and having the same circumferential angle. In a female contact for an electrical socket having a plurality of slit notches, at least one present in a different radial portion with respect to the plurality of slit notches is less than a predetermined depth and less than another. Thus, a female contact for an electrical socket which is slit to a small depth is obtained.

[0012] In the female contact for an electric socket, it is preferable that at least one of the plurality of slit notches present in different radial portions is slit deeper than a predetermined depth.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a female contact for an electric socket according to one embodiment of the present invention. FIG. 1 (a) relates to an external perspective view thereof, and FIG. ) Is related to a cross-sectional view in the AA ′ direction.

This female contact 1C for an electric socket
Is also fitted and pressed against the round pin-shaped male contact 10 of the mating electrical socket connector, and has a hollow portion for inserting the round pin-shaped male contact 10 and has a uniaxial direction. The female contact 1 </ b> C for an electric socket has an annular cross-sectional shape and a predetermined radial direction including the center of the annular shape of one end which is a fitting side with the round pin-shaped male contact 10. Depth d from part to uniaxial direction
2 that has two slit notches 1c that are slit by 3 and that is radially orthogonal to a predetermined radial portion and is axially slit at a depth d3 ′ that is much smaller than the depth d3 in the axial direction. It has two slit notches 1c '.

That is, the female contact 1C for an electric socket has two types of slit notches 1c and 1c ', each having a different depth, but the depth d of the slit notch 1c.
3 is deeper than the depth d2 of the conventional four slit notches 1b as described in FIGS. 3 (a) and 3 (b).
The depth d3 of the slit notch 1c is as shown in FIG.
Conventional two slit notches 1 as described in (b)
It suffices if the depth is equal to or slightly smaller than the depth d1 of a. Incidentally, the depths d3, d3 'of the slit notches 1c, 1c' are shown in FIGS. 2 (a), (b) and 3 (a),
Each slit notch 1a, 1b, 1b 'described in (b)
In terms of the magnitude relationship with the depths d1 and d2, d3 ′ <d
2 ≦ d3 ≦ d1.

When the female contact 1C for an electric socket is fitted and pressed against the round pin-shaped male contact 10, the tip of the round pin-shaped male contact 10 is inserted into the hollow portion, and the slit notches 1c, 1c ' Constrict. In this state, as shown in FIG. 1B, the female contact 1C for an electrical socket and the round pin-shaped male contact 10 are brought into contact with the inner wall of the hollow portion and the outer periphery of the tip of the round pin-shaped male contact 10 at four points. However, the depth d3 'of the slit notch 1c' is much smaller than the depth d3 of the slit notch 1c, and the depth d3 of the slit notch 1c is equal to or greater than the depth d2 of the same conventional type. , A sufficiently large contact pressure can be obtained even if the contact is made at four points. As a result, the advantages of the four-point contact can be utilized, and poor contact hardly occurs.

In the above-described embodiment, the female contact for the electric socket having the four slit notches 1c and 1c 'has been described. More than the illustrated number of, for example, six, eight, etc. may be provided in different radial parts including the center of the one end part in the annular shape and having the same circumferential angle.

In such a case, at least one of the slit notches present in the different radial portions is slit less than the predetermined depth and shallower than the other, and if necessary, the other slit notches may be formed. If at least one of them is formed by slitting deeper than a predetermined depth, the same operation and effect as in the embodiment can be obtained.

That is, according to an example based on the configuration described in the embodiment, the slit notch 1c 'having the depth d3' is equal to the depth d.
And a female contact (not shown) for an electrical socket having eight slit notches 1c, 1c 'positioned between each of the three four slit notches 1c. Therefore, the present invention is not limited to the embodiments.

[0021]

As described above, according to the present invention, the conventional female contact for an electric socket having a plurality of slit notches having a predetermined depth is improved, and the plurality of slit notches are improved. At least one of the different radial portions is less than a predetermined depth and shallower than the other, and at least one of the other is deeper than the depth of the same type of the related art. Therefore, a sufficiently large contact pressure can be obtained even when the connector for the mating electric socket is engaged with the round pin-shaped male contact at multiple points, and the contact which is an advantage inherent in the multipoint contact is obtained. The advantage that defects are unlikely to be caused is utilized, and the usefulness is extremely high.

[Brief description of the drawings]

FIG. 1 shows a basic configuration of a female contact for an electric socket according to one embodiment of the present invention, wherein (a) relates to an external perspective view, and (b) shows AA ′ in (a). It relates to a sectional view in the direction.

FIG. 2 shows a basic configuration of a conventional female contact for an electric socket, wherein (a) relates to an external perspective view,
(B) relates to a cross-sectional view in the AA 'direction in (a).

3A and 3B show a basic configuration of another conventional female contact for an electric socket, in which FIG. 3A is related to an external perspective view, and FIG. 3B is a cross-sectional view in the AA ′ direction in FIG. It is about.

[Explanation of symbols]

 1A, 1B, 1C Female contact for electric socket 1a, 1b, 1b ', 1c, 1c' Slot notch 10 Male pin shaped round pin

Claims (2)

(57) [Claims] 1. A pin-shaped male contact which is fitted and pressed against a pin-shaped male contact of a mating electrical socket connector, has an annular cross section and extends in a uniaxial direction, and A plurality of slits each having a predetermined depth in the uniaxial direction from different radial portions including the center of the annular shape of the one end portion on the mating side thereof and having the same circumferential angle with each other. A female contact for an electrical socket having a notch, wherein at least one of the plurality of slit notches present in the different radial portion is slit less than the predetermined depth and less than the other. A female contact for an electrical socket, characterized in that: 2. The female contact for an electrical socket according to claim 1, wherein at least one of the plurality of slit notches present in the different radial portions is deeper than the predetermined depth. A female contact for an electrical socket, characterized by being split.